Add -u shorthand option for updating baseline screenshots and snapshots

packages/kbn-test/src/functional_test_runner/cli.ts

@@ -60,8 +60,8 @@ export function runFtrCli() {
             include: toArray(flags['include-tag'] as string | string[]),
             exclude: toArray(flags['exclude-tag'] as string | string[]),
           },
-          updateBaselines: flags.updateBaselines,
-          updateSnapshots: flags.updateSnapshots,
+          updateBaselines: flags.updateBaselines || flags.u,
+          updateSnapshots: flags.updateSnapshots || flags.u,
         }
       );
 
@@ -132,9 +132,10 @@ export function runFtrCli() {
           'invert',
           'test-stats',
           'updateBaselines',
+          'updateSnapshots',
+          'u',
           'throttle',
           'headless',
-          'updateSnapshots',
         ],
         default: {
           config: 'test/functional/config.js',
@@ -151,6 +152,7 @@ export function runFtrCli() {
         --test-stats       print the number of tests (included and excluded) to STDERR
         --updateBaselines  replace baseline screenshots with whatever is generated from the test
         --updateSnapshots  replace inline and file snapshots with whatever is generated from the test
+        -u                 replace both baseline screenshots and snapshots
         --kibana-install-dir  directory where the Kibana install being tested resides
         --throttle         enable network throttling in Chrome browser
         --headless         run browser in headless mode

packages/kbn-test/src/functional_tests/cli/run_tests/args.js

@@ -47,7 +47,10 @@ const options = {
     desc: 'Replace baseline screenshots with whatever is generated from the test.',
   },
   updateSnapshots: {
-    desc: 'replace inline and file snapshots with whatever is generated from the test.',
+    desc: 'Replace inline and file snapshots with whatever is generated from the test.',
+  },
+  u: {
+    desc: 'Replace both baseline screenshots and snapshots',
   },
   include: {
     arg: '<file>',

packages/kbn-test/src/functional_tests/cli/run_tests/cli.test.js

@@ -133,6 +133,14 @@ describe('run tests CLI', () => {
       expect(exitMock).not.toHaveBeenCalledWith();
     });
 
+    it('accepts boolean value for -u', async () => {
+      global.process.argv.push('-u');
+
+      await runTestsCli(['foo']);
+
+      expect(exitMock).not.toHaveBeenCalledWith();
+    });
+
     it('accepts source value for esFrom', async () => {
       global.process.argv.push('--esFrom', 'source');